Web camera motion capture laser turret. Targets and paints the EL Wire butterfly very nicely. The butterfly I made using Electroluminescent Wire sewn onto an ornamental butterfly with fishing line.
http://en.wikipedia.org/wiki/Electroluminescent_wire
Laser Turret is a prototype robot I slopped together. I have been using it to learn how to program and understand wireless communication. It is built from a set of Surgical clamps, velcro, breadboards, plumbers tape, servo’s, ATMega328p and the laser torn out of a laser pointer.
Processing & Arduino code from Bob Rudolph’s Sentry Gun Turret. Thumbs up to him and his very nice code. The servo targeting via serial communication works great via Zigbee Wireless.
http://www.instructables.com/id/Autonomous-Paintball-Sentry-Gun/